Troubleshooting
Safety precautions
160
Maintenance Procedures
December 2003
•
Do not power down either a switch-node or port carrier to replace a board.
•
Handle fiber-optic cables with care. Bending, piercing, or cutting a cable can sever
communications between major subsystems.
•
To disconnect a fiber-optic cable, grasp both the lightwave transceiver and the cable’s connector.
•
When you are finished working on a cabinet, replace and secure every panel and cover to avoid
disseminating electromagnetic interference.
•
Before powering down a cabinet or carrier containing an EMBEDDED AUDIX system (TN568),
first power down the AUDIX unit to avoid damaging its software. Instructions for powering down
this unit are in
Removing and restoring EMBEDDED AUDIX power
on page 160, on the circuit
pack, and in EMBEDDED AUDIX documentation.
Removing and restoring EMBEDDED AUDIX
power
Manually power down AUDIX System
A amber caution sticker on the system’s power unit notifies technicians to shut down the EMBEDDED
AUDIX system prior to powering down the system.
1
Using a pointed object, such as a paper clip or pen (do not use a pencil), press the Boot/Shutdown
button. The button is located at the top right portion of the front panel.
2
Hold the Boot/Shutdown button in until the LCD display flashes the message
MSHUT.
3
Release the Boot/Shutdown button.
NOTE:
The EMBEDDED AUDIX system takes about five minutes to shut down. The “heartbeat”
indication on the display continues to flash.
Manually power up AUDIX
1
Using a pointed object such as a paper clip or a pen (do not use a pencil), press the
Boot/Shutdown button.
2
Hold the Boot/Shutdown button in until the display indicates the message,
BTEST
, steady on.
3
Release the Boot/Shutdown button. The EMBEDDED AUDIX system takes approximately 5
minutes to power up.
The display has the following sequence of steady-on messages:
•
OSINIT
•
OS
•
AINIT
•
ADX
The EMBEDDED AUDIX system is now powered up. When the system is in the active state, the
display indicates
ADX
, and the red LED is off.
4
When powering up, the EMBEDDED AUDIX system automatically reboots. This sequence may
show an
MD
or
MJ ADX
alarm in the display until the system has powered up. When the system
has completed its power-up sequence, the display reads:
ADX
.
Summary of Contents for CMC1
Page 1: ...Maintenance Procedures 555 245 103 Issue 1 1 December 2003 ...
Page 14: ...Contents 14 Maintenance Procedures December 2003 ...
Page 416: ...Additional maintenance procedures IP Telephones 416 Maintenance Procedures December 2003 ...
Page 426: ...Index X 426 Maintenance Procedures December 2003 ...